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參數資料
| 型號： | 5962-9855003QXA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 550 MHz, CDSO20 |
| 封裝： | CERAMIC, SOIC-20 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 274K |
| 代理商： | 5962-9855003QXA |
TLW12459
LMX2305
PLLatinum
550
MHz
Frequency
Synthesizer
for
RF
Personal
Communications
PRELIMINARY
August 1996
LMX2305
PLLatinum
TM 550 MHz Frequency Synthesizer
for RF Personal Communications
General Description
The LMX2305 is a high performance frequency synthesizer
with an integrated prescaler designed for RF operation up to
550 MHz It is fabricated using National’s ABiC IV BiCMOS
process
The LMX2305 contains a dual modulus prescaler which can
select either a 6465 or a 128129 divide ratio at input fre-
quencies of up to 550 MHz LMX2305 which employs the
digital phase lock loop technique combined with a high
quality reference oscillator and a loop filter provides the
tuning voltage for the voltage controlled oscillator to gener-
ate a very stable low noise local oscillator signal
Serial data is transferred into the LMX2305 via a three line
MICROWIRETM interface (Data Enable Clock) Supply volt-
age can range from 265V to 55V The LMX2305 features
very low current consumption typically 40 mA at 275V
The LMX2305 is available in a TSSOP 20-pin surface mount
plastic package
Features
Y
RF operation up to 550 MHz
Y
265V to 55V operation
Y
Low current consumption
ICC e 40 mA (typ) at VCC e 275V
Y
Dual modulus prescaler 6465 or 128129
Y
Internal balanced low leakage charge pump
Y
Small-outline plastic surface mount TSSOP
0173
wide package
Applications
Y
Analog Cellular telephone systems
(AMPS ETACS NMT)
Y
Portable wireless communications
(PCSPCN cordless)
Y
Wireless local area networks (WLANs)
Y
Other wireless communication systems
Y
Pagers
Block Diagram
TLW12459 – 1
TRI-STATE
is a registered trademark of National Semiconductor Corporation
MICROWIRETM and PLLatinumTM are trademarks of National Semiconductor Corporation
C1996 National Semiconductor Corporation
RRD-B30M126Printed in U S A
http
www nationalcom
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 5962-9855501VPA | 功能描述:計時器和支持產品 QML Class V Prec Timer RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內部定時器數量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| 59629856401QEA | 制造商:TI 功能描述:SNJ5447AJ |
| 5962-9856401QEA | 制造商:Texas Instruments 功能描述:Decoder/Driver Single 4-to-7 16-Pin CDIP Tube |
| 5962-9858401QFA | 功能描述:LVDS 接口集成電路 RoHS:否 制造商:Texas Instruments 激勵器數量:4 接收機數量:4 數據速率:155.5 Mbps 工作電源電壓:5 V 最大功率耗散:1025 mW 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-16 Narrow 封裝:Reel |
| 5962-9858501QFA | 功能描述:總線接收器 RoHS:否 制造商:Texas Instruments 接收機數量:4 接收機信號類型:Differential 接口類型:EIA/TIA-422-B, V.11 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-16 封裝:Reel |
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